TIME COURSE OF ODORANT- AND TRIGEMINAL-INDUCED ACTIVATION IN THE HUMAN BRAIN: AN EVENT-RELATED FUNCTIONAL MAGNETIC RESONANCE IMAGING STUDY
|
|
- Shanon Simpson
- 8 years ago
- Views:
Transcription
1 Neuroscience 189 (2011) TIME COURSE OF ODORANT- AND TRIGEMINAL-INDUCED ACTIVATION IN THE HUMAN BRAIN: AN EVENT-RELATED FUNCTIONAL MAGNETIC RESONANCE IMAGING STUDY P.-E. BILLOT, a A. COMTE, a,b E. GALLIOT, a P. ANDRIEU, a V. BONNANS, b L. TATU, a,c T. GHARBI, d T. MOULIN a,b AND J.-L. MILLOT a * a Laboratoire de Neurosciences Intégratives et Cliniques, Université de Franche-Comté, 2 Place Leclerc, Besançon Cedex, France b Département de Neuroimagerie Fonctionnelle, Centre d Investigation Clinique Innovation Technologique, Centre Hospitalier Universitaire J Minjoz, Boulevard Fleming, Besançon Cedex, France c Département d Anatomie, Centre Hospitalier Universitaire J Minjoz, Boulevard Fleming, Besançon Cedex, France d Laboratoire d Electronique, Mécanique et Optique Unité Mixte de Recherche CNRS 6174, Université de Franche-Comté, Route de Gray, Besançon Cedex, France Abstract It is well known that most odorants stimulate the trigeminal system but the time course of the brain regions activated by these chemical stimulations remains poorly documented, especially regarding the trigeminal system. This functional magnetic resonance imaging (fmri) study compares brain activations resulting from the contrast between two odorant conditions (one bimodal odor and one relatively pure olfactory stimulant) according to the duration of the stimulation (i.e. one inhalation, or three or six successive inhalations). The results show striking differences in the main brain regions activated according to these durations. The caudate nucleus and the orbitofrontal cortex are only involved in short-duration stimulations, and the posterior insular cortex and post-central gyrus (SI) are only activated by long duration stimulations. Different regions of the frontal, temporal and occipital lobe are activated depending on the duration but mainly during medium-duration stimulations. These results expand on the findings of previous studies and contribute to the description of temporal networks in trigeminal perception IBRO. Published by Elsevier Ltd. All rights reserved. Key words: trigeminal, fmri, olfaction, bimodal odor. Most odorants are simultaneously perceived in humans by two sensory systems. They stimulate receptors of the olfactory epithelium, and thus the olfactory nerve (cranial nerve I), as well as free nerve endings and specific receptors in the nasal cavity, and thus the trigeminal nerve (cranial nerve V) (Doty et al., 1978; Hummel, 2000). Although the brain processes corresponding to their integration contribute to the various perceptions of odors and flavors (Albrecht et al., 2010), the interactions between these two sensory systems remain poorly understood. *Corresponding author. Tel: ; fax: address: jean-louis.millot@univ-fcomte.fr (J.-L. Millot). Abbreviations: AA, isoamyl acetate; PEA, phenyl ethyl alcohol /11 $ - see front matter 2011 IBRO. Published by Elsevier Ltd. All rights reserved. doi: /j.neuroscience Due to numerous studies in functional cerebral imaging, the brain areas affected by olfactory stimulation and perception are now well-known. Stimulation by any pure or relatively pure olfactory stimulant mainly activates primary olfactory regions (i.e. piriform cortex, amygdala and neighboring cortex) and secondary olfactory regions (hippocampus, orbitofrontal cortex and insula) (Zatorre et al., 1992; Royet et al., 2001; Gottfried et al., 2002; Savic, 2002). Asymmetry between the two hemispheres can be constant (e.g. the right orbitofrontal cortex is predominantly activated) or odor dependent (left amygdala appears to be more sensitive to unpleasant odors). Other brain areas may be involved depending on the subject s odor-related task: judgments of intensity, familiarity, memory or characteristics of hedonic valence (Royet et al., 2003). Nevertheless, studies on time course-induced activations have shown that some brain areas are successively affected by these processes. First and foremost, short bursts of stimulation activate the piriform cortex, hippocampus and part of the insula. These activities decrease in long duration stimulations which lead to a strong recruitment of the right orbitofrontal cortex (Sobel et al., 2000; Poellinger et al., 2001). The literature on the functional neuroanatomy of trigeminal perception is less substantial. Contrasting or comparing brain activations due to odorants with different trigeminal properties is a common and fruitful approach to specifying the brain activations elicited by the trigeminal component of an odorant. Studies have shown additional activations of the insula, cingulum and cerebellum with bimodal (olfactory trigeminal) stimuli compared to pure olfactory stimulants (Yousem et al., 1997; Bengtsson et al., 2001; Savic et al., 2002; Lombion et al., 2009). Hummel et al. (2005) and Boyle et al. (2007a,b) used CO 2 (a relatively selective trigeminal nerve stimulant) as a referent and found additional activations in the midbrain, caudate nucleus, middle cingulate and temporal and frontal gyri. Iannilli et al. (2007) investigated brain activations in anosmic subjects in response to CO 2 and mainly found activations in parts of the cerebellum and the temporal, parietal and frontal cortices. Nevertheless, the time course of activations for these areas involved in trigeminal perception remains largely unknown. Previous studies have used either relatively long durations, from 15 s to 30 s (Yousem et al., 1997; Bengtsson et al., 2001; Savic et al., 2002) or puffs of odors lasting 1 s or less (Boyle et al., 2007a,b; Iannilli et al., 2007). The present study aimed to define some of the elements of the time-dependent processes in response to trigeminal stimulation. As in a previous study (Lombion et
2 P.-E. Billot et al. / Neuroscience 189 (2011) al., 2009) we used phenyl ethyl alcohol (PEA), a rose-like odor, and isoamyl acetate (AA), a banana-like odor as odorants. PEA is a relatively pure olfactory stimulus and AA is a bimodal stimulus; they are detected by one of 15 and 15 of 15 total anosmics, respectively (Doty et al., 1978). Both are considered as slightly pleasant (Dravnieks et al., 1984; Hummel et al., 1997). Using these odorants, we therefore attempted to minimize any brain activations that could be due to obvious differences between sensations of pleasantness/unpleasantness elicited by the odorants used as noted in other studies (Savic et al., 2002; Boyle et al., 2007b). Subjects EXPERIMENTAL PROCEDURES Twenty-five healthy undergraduate students (aged years; 19 females and six males) were included in the study. The subjects were non-smokers, right-handed, free of head colds and screened for any possible olfactory dysfunctions prior to the study. The study was reviewed and approved by the local ethics committee and declared to the National authority (N UF: 1013; DGS 2006/0494) in accordance with the Declaration of Helsinki on biomedical studies involving human subjects. Subjects participation also required a written informed consent and medical screening. Odor delivery The odors were delivered via a multi-channel custom-built olfactometer (Andrieu et al., 2011). The olfactometer was suitable for the MRI environment and generated odors with a rapid and steady on-off time (400 ms). The change between odorant and nonodorant conditions did not produce any thermal, tactile or auditory cues. Under baseline conditions, a constant flow of odorless, humidified air at a constant temperature was delivered to the subject through two nasal cannula nosepieces (Pro-Flow Plus TM Nasal Oral Cannula, Pro-Tech, Murrysville, PA, USA). The use of this air as a vector embedding the odor flow prevented the detection of odor delivery by sensory systems other than chemical (such as sensitivity to changes in pressure). The pressure of each air stream (vector and odor) was controled by a flowmeter, ensuring a constant flow rate of 591 ml/min for each one. The use of solenoid valves allowed the different odorant conditions to be generated by selecting the air flow passing through encapsulated gauze pads soaked either with 7 l of PEA or 5 l of AA (undiluted solution: Across Organics, Gell, Belgium). The capsules (2 cm in diameter) were connected to the nosepieces by a tube which was short (10 cm) in order to ensure minimal adhesion and a square wave-like delivery of the odor. These supra-threshold concentrations were chosen following preliminary tests on a panel of five young women to obtain approximately the same self-ratings of intensity for the two odors and to ensure that both odors were constantly and correctly perceived for a sufficient amount of time corresponding to the MRI session duration. No sensation relating to trigeminal stimulation (Laska et al., 1997) was reported for PEA but a slight sensation of tickling or prickling was mentioned by four of the five subjects. The odor delivery was generated by a computer with E-Prime 2.0 (Psychology Software Tools, Pittsburg, USA) and synchronized with the onset of an inward breath by the subject (inhalation flow rate trigger). The delivery lasted 2 s to ensure that the odor would be smelled for the entire duration of the inhalation phase of the breathing cycle. Before the scan session, subjects were debriefed on the purpose of the study and informed about the type of odors used. They were asked to breathe regularly through the nose only, without actively sniffing (sniffing has been shown to activate special brain processes [Sobel et al., 1998a]), and to focus on the odors without performing any others tasks. At the end of the scan, they were asked to describe their feelings about the odorants used. Experimental paradigm Subjects were scanned during a sequence of odorant stimulations, with either PEA or AA alternating with the non-odorant condition. Each of these odorants was delivered for either one inhalation, three successive inhalations or six successive inhalations. This procedure was repeated four times for each of the two odorants and for each of the three inhalation sequences (i.e. 1, 3, 6) corresponding to three different durations of continuous stimulation (Fig. 1). Each of these odorant stimulations (short, medium, long duration) was separated by a rest condition (odorless air flow) lasting at least 25 s, up until the inhalation trigger. The sequences of odor type and stimulus duration were randomly determined for each subject by a computer program, which continuously monitored the breathing cycle and controled the switching device of the olfactometer. MRI data acquisition Magnetic resonance images were collected on a 3-T scanner (G.E. Healthcare Signa, Milwaukee, WI, USA). First of all, a highresolution T1-weighted (BRAVO FSPGR sequence) 3D anatomical scan with 134 slices, voxel size of mm 3, matrix and mm 2 field of view (FOV) was recorded. Next, BOLD images were obtained covering the entire cerebrum and most of the cerebellum using an echo-planar imaging (EPI) sequence. Scan parameters included a matrix, a repetition time (TR) of 2500 ms, a echo time (TE) of 35 ms and an FOV 256 mm 2. Thirty 4.5-mm thick slices were acquired for each of the volumes. They were acquired in an oblique orientation 30 to the anterior commissure posterior commissure line to minimize sus- Fig. 1. Sample of the experimental procedure during the functional scan. Odorless epochs (rest) alternated with odorant stimulations (either with phenyl ethyl alcohol or isoamyl acetate: PEA and AA) synchronized with the beginning of the inward breath during one, three or six successive inhalations. This whole procedure was repeated four times in a random order during the scan. T inhalation trigger.
3 372 P.-E. Billot et al. / Neuroscience 189 (2011) ceptibility artifacts in olfactory regions of the brain: ventral portions of the temporal and frontal lobes (Gottfried et al., 2002; Sobel et al., 2003). Functional scanning was always preceded by four dummy volumes to ensure tissue steady-state magnetization. The total duration of the functional session was between 14 and 18 min, depending on the frequency of the respiratory cycle of each subject. All the scans were inserted into the matrix design for statistical analysis. Functional magnetic resonance imaging (fmri) data analysis The event-related fmri data were analyzed with the Brain Voyager TM QX software package (Goebel, 1996) using the general linear model (Friston et al., 1995). Functional data pre-processing included head motion correction, high-frequency filtering and spatial (FWHM 5 mm) and temporal Gaussian smoothing. Next, the functional data were spatially re-scaled to a resolution of mm 3 using trilinear interpolation. Functional and anatomical images were transformed into a standard space (Talairach and Tournoux, 1988). The further analysis included two steps. Our study focused on the trigeminal properties of AA; these may be uncertain as they depend on the concentration used (which was selected as moderate) and are prone to variations according to individual sensitivity. We therefore initially verified the presence or absence of activations in individual analyses, subject by subject, on the trigeminal nuclei (brainstem) in order to exclude any subjects without activations. The condition of one respiratory cycle was examined to ascertain this trigeminal property of the bimodal stimulation (contrast AA-PEA). Activations (P 0.05, uncorrected; cluster size 10 voxels) in this area were observed for 17 subjects (13 females and four males). The analysis was subsequently performed in a second step on these 17 subjects only. Random effect analyses (RFX) were conducted based on statistical parameter maps from each individual subject. As the aim of our study was the time course of activation in response to the trigeminal component of an odorant, we focused the analysis only on the significant activations resulting from the bimodal stimulations minus the olfactory stimulations (AA-PEA). These activation patterns were analyzed in the three different stimulation durations corresponding to inhalations of one, three and six respiratory cycles. For the three and six respiratory cycles, we only took into account the last inspiration in order to compare similar situations, without temporal summation, but with various previous durations of odorant stimulation. Cluster activations were considered if 10 or more adjacent voxels passed the threshold of P (uncorrected). RESULTS On the post-scan debriefing, all the subjects described the pleasantness of the odorants as neutral to positive. Of the 17 subjects, 14 reported slight sensations of tickling or prickling for the AA odorant. Concerning the fmri data, Table 1 gives the clusters of activations obtained with AA stimulations using PEA as a reference and according to the duration of the stimulations, that is, one, three or six successive inhalations. During short-duration stimulations (one inhalation), activations were located in the left brainstem (trigeminal nuclei) and cerebellum. The caudate nucleus (bilaterally), the left anterior cingulate cortex, anterior insula and hippocampus were also recruited. Other cortices were virtually unaffected by activations observed exclusively in the posterior orbitofrontal cortex (Fig. 2A). For medium-duration stimulations (the third of three successive inhalations), activations were more numerous and located predominantly in the right hemisphere. They mainly concerned the inferior, middle and superior frontal cortex and, to a lesser degree, the temporal and the occipital lobe as well as the anterior insula. Globus pallidus recruitment was observed in this contrast, as well as an activation in the right cerebellum (Fig. 2B). During long-duration stimulations (the sixth of six successive inhalations), activations in the frontal lobe (medial part) were more restricted than in the previous situation. However activations were observed in the brainstem (pontic trigeminal tractus) and in the left post-central gyrus (SI). Activations also affected the middle cingulate cortex and the posterior insular regions. Cerebellar activations were restricted to the left hemisphere (Fig. 2C). DISCUSSION Previous studies comparing activations with pure olfactory and trigeminal stimuli have demonstrated considerable overlap in the brain areas mediating these two sensorial systems, but some structures are almost exclusively identified in cases of trigeminal stimulation (Albrecht et al., 2010). In our study, it can be assumed that there was a clear difference between the trigeminal properties of the two odorants since no subjects in the preliminary panel and no subjects tested at a post-experiment debriefing reported any specific trigeminal sensation (Laska et al., 1997) for the PEA. On the contrary, slight sensations of tickling or prickling have been reported for AA (but no sensation relative to nociception such as pain, burning, etc.) and our results identified activations in the pontic trigeminal nucleus as well as in brain regions which have been previously shown to be involved in trigeminal perception in the literature. However, one limitation of our study is that no acute behavioral assessment of the perception of the trigeminal component was performed for AA stimulation. In order to do this, a group of anosmic patients would need to be tested. It can be assumed that they would perceive an odor with AA, used at the same concentration as in this study, thus demonstrating the trigeminal nature of this stimulation. Further research is needed in order to address these limitations of the study. However, our results show clear differences in activation patterns according to the duration of the previous stimulation which varied from 2 s (one inhalation) to about 30 s (six successive inhalations). When the stimulus duration was short, the results showed an activation of the caudate nucleus. This activation was no longer observed when the duration of the stimulation increased. The caudate nucleus is cited as a sub-cortical region activated by trigeminal stimulations (Hummel et al., 2009). However, it is not systematically cited in cerebral imaging studies using pure trigeminal stimuli and thus does not appear in the meta-analysis of brain imaging data by Albrecht et al. (2010). Iannilli et al. (2009) mentioned the caudate nucleus as being activated using electrical or mechanical trigeminal mediating stimulations but not chemical (CO 2 ) stimulations. However, in subjects smelling bimodal odorants, Bengtsson et al.
4 P.-E. Billot et al. / Neuroscience 189 (2011) Table 1. Cerebral activations with isoamyl acetate (AA) using phenyl ethyl alcohol (PEA) as a reference and according to the duration of the stimulation (one, three and six inhalations: AA1-PEA1, AA3-PEA3, AA6-PEA6, respectively) Brain regions x y z K Max t value P value Contrast AA1-PEA1 R Caudate nucleus (head) R Caudate nucleus (body) L Caudate nucleus (body) L Anterior insula L Anterior cingulate cortex L Posterior orbitofrontal cortex L Hippocampus L Cerebellum: anterior lobe (culmen) L Brainstem: pontic trigeminal nucleus Contrast AA3-PEA3 R Superior frontal gyrus R Superior frontal gyrus L Middle frontal gyrus R Middle frontal gyrus R Superior frontal gyrus L Middle frontal gyrus R Inferior frontal gyrus L Inferior frontal gyrus R Angular gyrus L Angular gyrus R Globus pallidus R Anterior insula R Middle temporal gyrus R Inferior temporal gyrus R Inferior temporal gyrus R Cuneus R Inferior occipital gyrus R Inferior occipital gyrus R Cerebellum: superior semilunar lobule Contrast AA6-PEA6 R Superior frontal gyrus (medial part) L Superior frontal gyrus (medial part) L Middle cingulate gyrus L Post-central gyrus (SI) L Posterior insula L Posterior insula R Posterior insula R Posterior insula R Superior temporal gyrus L Cerebellum hemisphere L Cerebellum: inferior semi-lunar lobule L Brainstem: pontic trigeminal tractus All reported activations were significant at P 0.005, uncorrected. Talairach coordinates are presented in x,y,z (mm). K is the volume of clusters (in voxels). The t and P-values are given for the voxel showing the maximal activation. R (right) and L (left) refer to the brain hemisphere. (2001) noted a widespread activation extending to the caudate nucleus in female subjects. It is possible that the caudate nucleus is only involved when a bimodal stimulus is used (which was the case in our study) but not when a pure trigeminal stimulus is applied, as an olfactory stimulus may enhance responses to a simultaneous trigeminal component of the stimulation (Hummel et al., 1996, 2003). Indeed, activations of the caudate nucleus have also been observed, sometimes in response to a pure olfactory stimulus (Poellinger et al., 2001) and particularly in odor quality discrimination (Savic, 2002), so we can conclude that in any case, its recruitment is greater for the trigeminal component of an odorant. Curiously, Poellinger s study only showed activations of the caudate nucleus for short-duration stimulations, as observed in the present study. Cerebellar activations were also noted, as was the case in our study, following intranasal trigeminal stimulation (Iannilli et al., 2007) in normosmic subjects. The left posterior orbitofrontal cortex was affected by the present contrast. In the literature, as the right medial orbitofrontal cortex activation strongly characterizes olfactory stimulations (Zatorre et al., 1992; Sobel et al., 2003; Gottfried et al., 2006), trigeminal stimulations have been found in different locations within the frontal cortex, particularly in the dorsolateral orbitofrontal cortex (Hummel et al., 2005), and in the left posterior orbital gyrus alongside other
5 374 P.-E. Billot et al. / Neuroscience 189 (2011) Fig. 2. Contrasting bimodal odorant (isoamyl acetate) with olfactory odorant (phenyl ethyl alcohol) indicates different patterns of activation according to the duration of the stimulation. (A) Images on the top (one inhalation). TRA: left trigeminal nuclei; SAG: left anterior cingulate cortex; COR: caudate nuclei. (B) Images on the center (three inhalations). TRA: angular gyri; SAG: right inferior frontal gurus; COR: right inferior and superior frontal gyri. (C) Images on the bottom (six inhalations). TRA: left post-central gyrus (SI); SAG: left middle cingulate and superior frontal gyri; COR: posterior insular cortices. For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article. activations in the middle, superior and medial gyri (Iannilli et al., 2007; Albrecht et al., 2010). The orbitofrontal cortex is not a homogeneous region and sub-regions can be affected by olfactory hedonics (Sobel et al., 2003) as well as by cross-modal chemosensory integration processes (Gottfried et al., 2006). Furthermore, as the right orbitofrontal cortex is mainly affected by odor stimulation, its left counterpart could be involved predominantly in trigeminal stimulation as the asymmetry shown in our results is consistent with other pools of data (Albrecht et al., 2010). For medium-duration stimulations, our results showed a maximum number of activated brain regions in the frontal cortices and some in the temporal and occipital cortices. The cerebellum was also involved with activation restricted to the right hemisphere. The recent review by Albrecht et al. (2010) of functional imaging data identifies the cerebellum, and the frontal and temporal lobes as regions where activations due to trigeminal stimulations surpass those due to olfactory stimulations. This review is mainly based on studies using puffs of CO 2 as trigeminal stimulations and we observed that, with the trigeminal component of the bimodal odor used in our study, this type of activation pattern is in someway time delayed. As Albrecht et al. (2010) mentioned, the middle frontal and temporal gyri are association cortices and they could play a role in more highly integrated steps of chemosensory perception, but the reason why they are more affected by trigeminal stimulation than by olfactory stimulation has yet to be explored. In the same way, trigeminal activations are noticeably more pronounced compared to olfactory activations (Hummel et al., 2005).
6 P.-E. Billot et al. / Neuroscience 189 (2011) During long-duration stimulations, one of the most striking results was the activation of the insula, predominantly in the left hemisphere. Insula activations are almost systematically noted in studies using bimodal or pure trigeminal stimuli. They have been explained by discrimination processes (Bengtsson et al., 2001), nociception (Savic et al., 2002) and by emotional processes specific to trigeminal perception (Albrecht et al., 2010). Our study suggests that these emotional processes involving the insula only emerge following a relatively long period of stimulation. Interestingly, middle cingulate activations were only seen in our study during long-duration stimulations. Middle cingulate activations with trigeminal stimulation were noted by Boyle et al. (2007b), Albrecht et al. (2009). Furthermore, it has been demonstrated that coding intensity of a pure trigeminal stimulus (CO 2 ) involves subregions (including the medial part) of the cingulate cortex (Bensafi et al., 2008). Therefore a sustained stimulation with a moderate intensity could have the same result on the brain activation as a stimulation with a high intensity. Furthermore, our results only showed the recruitment of the SI for these long-duration stimulations. This primary somatosensory cortex activation has been observed by Bensafi et al. (2008), Boyle et al. (2007b) and Savic et al. (2002) in response to trigeminal stimulation. Our results could suggest that somatosensitivity to the trigeminal component of a stimulation increases with its duration. Indeed, the present results are also consistent with data on brain activations related to stimulations of C and A nociceptors. These two types of fiber system participate in the afferent innervation of the nasal respiratory epithelium by the trigeminal nerve. C-fibers (unmyelinated) are preferentially involved in burning sensations and A -fibers (myelinated) in stinging and pricking sensations (Brand, 2006). Stimulations of each or both elicit activations in the posterior insula (bilaterally), in the mid-anterior cingulate cortex and in the SI (Forss et al., 2005; Ruehle et al., 2006; Staud et al., 2007; Veldhuijzen et al., 2009). These are the most consistently activated regions in pain imaging studies (Peyron et al., 2001). Although there was no painful sensation reported by the subjects in our study, these areas were recruited but only for long-duration stimulations. It is worth noting that somatosensory cortex activations (besides the middle cingulate cortex and bilateral insula) have been previously demonstrated for stimulation of the nasal mucosa with nicotine without any reports of painful sensations by the subjects (Albrecht et al., 2009). Subregions of the cerebellum were involved regardless of the stimulus duration. This deserves special attention. Activations in the cerebellum are regularly observed in response to olfactory or trigeminal stimulations and they are usually interpreted as a result of motor control of sniffing, even in the case of passive stimulation (Sobel et al., 1998b, 2003). In our study, the activated cerebellar regions were different in the short-, medium- and longduration stimulations. This result may indicate roles of the cerebellum other than just the control of sniffing, such as a contribution to the cognitive processes linked to the perception of an odorant, as has previously been suggested (Qureshy et al., 2000). CONCLUSION This study helps to define the brain networks involved in trigeminal perception using different types of stimulation (neutral to slightly pleasant odors) and paradigm, and thus evaluates certain previous findings. Due to the differences between the two odors used ( rose compared to banana ), we cannot completely rule out the possibility of brain activations elicited by evocative properties specific to one or the other (i.e. not exclusively due to the trigeminal differential). However, we can assume that these possible activations would be idiosyncratic rather than univocal and therefore minimized when compared to the activations resulting from the trigeminal variation between the two odorants. Therefore, our study shows that, as is the case for olfactory perception, the time course of trigeminal perception successively involves different cortical and subcortical areas, demonstrating that the integration of this sensorial cue is just as sophisticated as brain processes linked to olfaction. Acknowledgments We would like to thank the Conseil Régional de Franche-Comté for its financial support and the Centre Hospitalier Universitaire de Besançon for authorizing this study. We are also grateful to Melanie Cole for her language assistance in the manuscript. REFERENCES Albrecht J, Kopietz R, Linn J, Sakar V, Anzinger A, Schreder T, Pollatos O, Bruckmann H, Kobal G, Wiesman M (2009) Activation of olfactory and trigeminal cortical areas following stimulation of the nasal mucosa with low concentration of S( )-nicotine vapor an fmri study on chemosensory perception. Hum Brain Mapp 30: Albrecht J, Kopietz R, Frasnelli J, Wiesmann M, Hummel T, Lundström JN (2010) The neural correlates of intranasal trigeminal function an ALE meta-analysis of human functional brain imaging data. Brain Res Rev 62: Andrieu P, Bonnans V, Comte A, Millot JL, Moulin T, Gharbi T (2011) Gustatory and olfactory systems for fmri investigations. In: Alpine Brain Imaging Meeting, Champéry. Bengtsson S, Berglund H, Gulyas B, Cohen E, Savic I (2001) Brain activation during odor perception in males and females. Neuroreport 12: Bensafi M, Iannilli E, Gerber J, Hummel T (2008) Neural coding of stimulus concentration in the human olfactory and trigeminal systems. Neuroscience 154: Boyle JA, Frasnelli J, Gerber J, Heinke M, Hummel T (2007a) Crossmodal integration of intranasal stimuli: a functional magnetic resonance imaging study. Neuroscience 149: Boyle JA, Heinke M, Gerber J, Frasnelli J, Hummel T (2007b) Cerebral activation to intranasal chemosensory trigeminal stimulation. Chem Senses 32: Brand G (2006) Olfactory/trigeminal interactions in nasal chemoreception. Neurosci Biobehav Rev 30: Doty RL, Brugger WPE, Jurs PC, Orndorff MA, Snyder PJ, Lowry LD (1978) Intranasal trigeminal stimulation from odorous volatiles: psychometric responses from anosmic and normal humans. Physiol Behav 20: Dravnieks A, Masurat T, Lamm RA (1984) Hedonics of odors and odor descriptors. J Air Pollut Control Assoc 34:
7 376 P.-E. Billot et al. / Neuroscience 189 (2011) Forss N, Raij TT, Seppä M, Hari R (2005) Common cortical network for first and second pain. Neuroimage 24: Friston KJ, Homes AP, Worsley KJ, Poline JP, Frith CD, Frackowiak RSJ (1995) Statistical parametric maps in functional imaging: a general linear approach. Hum Brain Mapp 2: Goebel R (1996) Brain Voyager: a program for analysing and visualizing functional and structural magnetic resonance data sets. Neuroimage 3:604. Gottfried JA, Deichmann R, Winston JS, Dolan RJ (2002) Functional heterogeneity of human olfactory cortex: an event-related functional magnetic resonance imaging study. J Neurosci 15: Gottfried JA, Small DM, Zald DH (2006) The chemical senses. In: The orbitofrontal cortex (Zald DH, Rauch SL, eds), pp Oxford: Oxford University Press. Hummel T (2000) Assessment of intranasal trigeminal function. Int J Psychophysiol 36: Hummel T, Barz S, Lotsch J, Roscher S, Kettenmann B, Kobal G (1996) Loss of olfactory function leads to a decrease of trigeminal sensitivity. Chem Senses 21: Hummel T, Sekinger B, Wolf SR, Pauli E, Kobal G (1997) Sniffing sticks: olfactory performance assessed by the combined testing of odor identification, odor discrimination and olfactory threshold. Chem Senses 22: Hummel T, Futschik T, Frasnelli J, Huttenbrink KB (2003) Effects of olfactory function, age and gender on trigeminally mediated sensations: a study based on the lateralization of chemosensory stimuli. Toxicol Lett : Hummel T, Doty RL, Yousem DM (2005) Functional MRI of intranasal chemosensory trigeminal activation. Chem Senses 30:i205 i206. Hummel T, Iannilli E, Frasnelli J, Boyle J, Gerber J (2009) Central processing of trigeminal activation in humans. Ann N Y Acad Sci 1170: Iannilli E, Gerber J, Frasnelli J, Hummel T (2007) Intranasal trigeminal function in subjects with and without an intact sense of smell. Brain Res 1139: Iannilli E, Del Gratta C, Gerber JC, Romani GL, Hummel T (2009) Trigeminal activation using chemical, electrical and mechanical stimuli. Pain 139: Laska M, Distel H, Hudson R (1997) Trigeminal perception of odorant quality in congenitally anosmic subjects. Chem Senses 22: Lombion S, Comte A, Tatu L, Brand G, Moulin T, Millot JL (2009) Patterns of cerebral activation during olfactory and trigeminal stimulations. Hum Brain Mapp 30: Peyron R, Laurent B, Garcia-Larrea L (2001) Functional imaging of brain responses to pain: a review and meta-analysis. Neurophysiol Clin 30: Poellinger A, Thomas R, Lio P, Lee A, Makris N, Rosen BR, Kwong KK (2001) Activation and habituation in olfaction an fmri study. Neuroimage 13: Qureshy A, Kawashima R, Imaran M, Sugiura M, Goto R, Okada K, Inoue K, Itoh M, Shormann T, Zilles K, Fukuda H (2000) Functional mapping of human brain in olfactory processing: a PET study. J Neurophysiol 84: Royet JP, Hudry J, Zald DH, Godinot D, Gregoire MC, Lavenne F, Costes N, Holley A (2001) Functional neuroanatomy of different olfactory judgments. Neuroimage 13: Royet JP, Plailly J, Delon-Martin C, Kareken DA, Segebarth C (2003) fmri of emotional responses to odors: influence of hedonic valence and judgment, handedness and gender. Neuroimage 20: Ruehle BS, Handwerker HO, Lennerz JKM, Ringler R, Forster C (2006) Brain activation during input from mechanoinsensitive versus polymodal C-nociceptors. J Neurosci 26: Savic I (2002) Brain imaging studies of the functional organization of human olfaction. Neuroscientist 8: Savic I, Gulyas B, Berglund H (2002) Odorant differentiated pattern of cerebral activation: comparison of acetone and vanillin. Hum Brain Mapp 17: Sobel N, Prabhakaran V, Desmond JE, Glover GH, Goode RL, Sullivan EV, Gabrieli JDE (1998a) Sniffing and smelling: separate subsystems in the human olfactory cortex. Nature 392: Sobel N, Prabhakaran V, Hartley CA, Desmond JE, Zhao Z, Glover GH, Gabrieli JDE, Sullivan EV (1998b) Odorant-induced and sniffinduced activation in the cerebellum of the human. J Neurosci 18: Sobel N, Prabhakaran V, Zhao Z, Desmond JE, Glover GH, Sullivan EV, Gabrieli JDE (2000) Time course of odorant-induced activation in the human primary olfactory cortex. J Neurophysiol 83: Sobel N, Johnson BN, Mainland J, Yousem D (2003) Functional neuroimaging of human olfaction. In: Handbook of olfaction and gustation, 2nd ed (Doty RL, ed), pp New York: Dekker. Staud R, Craggs JG, Robinson ME, Perlstein WM, Price DD (2007) Brain activity related to temporal summation of C-fiber evoked pain. Pain 129: Talairach J, Tournoux P (1988) Co-planar stereotaxic atlas of the human brain. 3-dimensional proportional system: an approach to cerebral imaging. New York: Thieme Medical. Veldhuijzen DS, Nemenov MI, Keaser M, Zhuo J, Gullapalli RP, Greenspan JD (2009) Differential brain activation associated with laser-evoked burning and prickling pain: an event-related fmri study. Pain 141: Yousem DM, Williams SCR, Howard RO, Andrew C, Simmons A, Allin M, Geckle RJ, Suskind D, Bullmore ET, Brammer MJ, Doty RL (1997) Functional MR imaging during odor stimulation: preliminary data. Radiology 204: Zatorre RJ, Jones-Gotman M, Evans AC, Meyer E (1992) Functional localization and lateralization of human olfactory cortex. Nature 360: (Accepted 13 May 2011) (Available online 20 May 2011)
Vision: Receptors. Modes of Perception. Vision: Summary 9/28/2012. How do we perceive our environment? Sensation and Perception Terminology
How do we perceive our environment? Complex stimuli are broken into individual features, relayed to the CNS, then reassembled as our perception Sensation and Perception Terminology Stimulus: physical agent
More informationSubjects: Fourteen Princeton undergraduate and graduate students were recruited to
Supplementary Methods Subjects: Fourteen Princeton undergraduate and graduate students were recruited to participate in the study, including 9 females and 5 males. The mean age was 21.4 years, with standard
More informationIntegrated Neural Representations of Odor Intensity and Affective Valence in Human Amygdala
The Journal of Neuroscience, September 28, 2005 25(39):8903 8907 8903 Brief Communication Integrated Neural Representations of Odor Intensity and Affective Valence in Human Amygdala Joel S. Winston, 1
More informationNEURO M203 & BIOMED M263 WINTER 2014
NEURO M203 & BIOMED M263 WINTER 2014 MRI Lab 1: Structural and Functional Anatomy During today s lab, you will work with and view the structural and functional imaging data collected from the scanning
More informationAn fmri study on reading Hangul and Chinese Characters by Korean Native Speakers
언 어 치 료 연 구, 제14 권 제4호 Journal of Speech & Hearing Disorders 2005, Vol.14, No.4, 29 ~ 36 An fmri study on reading Hangul and Chinese Characters by Korean Native Speakers Hyo-Woon Yoon(Brain Science Research
More informationWhat the nose knows. Processing of odors in the brain and their influence on eating behavior
What the nose knows Processing of odors in the brain and their influence on eating behavior Sanne Boesveldt Sensory Science and Eating Behavior, Division of Human Nutrition Food, Flavor and Olfaction Flavor
More informationDISSECTION OF THE SHEEP'S BRAIN
DISSECTION OF THE SHEEP'S BRAIN Introduction The purpose of the sheep brain dissection is to familiarize you with the threedimensional structure of the brain and teach you one of the great methods of studying
More informationObtaining Knowledge. Lecture 7 Methods of Scientific Observation and Analysis in Behavioral Psychology and Neuropsychology.
Lecture 7 Methods of Scientific Observation and Analysis in Behavioral Psychology and Neuropsychology 1.Obtaining Knowledge 1. Correlation 2. Causation 2.Hypothesis Generation & Measures 3.Looking into
More informationFunction (& other notes)
LAB 8. ANATOMY OF THE HUMAN BRAIN In this exercise you each will map the human brain both anatomy and function so that you can develop a more accurate picture of what s going on in your head :-) EXTERNAL
More informationAdolescent Brain Development and Effects of Alcohol Use
Adolescent Brain Development and Effects of Alcohol Use Monica Luciana, Ph.D. Professor and Chair Department of Psychology and Center for Neurobehavioral Development University of Minnesota (lucia003@umn.edu)
More informationThe neural origins of specific and general memory: the role of the fusiform cortex
Neuropsychologia 43 (2005) 847 859 The neural origins of specific and general memory: the role of the fusiform cortex Rachel J. Garoff, Scott D. Slotnick, Daniel L. Schacter Department of Psychology, Harvard
More information2401 : Anatomy/Physiology
Dr. Chris Doumen Week 7 2401 : Anatomy/Physiology The Brain Central Nervous System TextBook Readings Pages 431 through 435 and 463-467 Make use of the figures in your textbook ; a picture is worth a thousand
More informationVocabulary & General Concepts of Brain Organization
Vocabulary & General Concepts of Brain Organization Jeanette J. Norden, Ph.D. Professor Emerita Vanderbilt University School of Medicine Course Outline Lecture 1: Vocabulary & General Concepts of Brain
More informationWhole-brain Functional MR Imaging Activation from a Finger-tapping Task Examined with Independent Component Analysis
AJNR Am J Neuroradiol 21:1629 1635, October 2000 Whole-brain Functional MR Imaging Activation from a Finger-tapping Task Examined with Independent Component Analysis Chad H. Moritz, Victor M. Haughton,
More informationSheep Brain Dissection
Sheep Brain Dissection http://www.carolina.com/product/preserved+organisms/preserved+animals+%28mammal s%29/sheep+organs/preserved+sheep+dissection.do Michigan State University Neuroscience Program Brain
More informationBIO130 Chapter 14 The Brain and Cranial Nerves Lecture Outline
BIO130 Chapter 14 The Brain and Cranial Nerves Lecture Outline Brain structure 1. Cerebrum Hemispheres: left & right Cerebral cortex Gyri Sulci Fissures Longitudinal fissure Corpus callosum Lobes Central
More information7 The use of fmri. to detect neural responses to cognitive tasks: is there confounding by task related changes in heart rate?
7 The use of fmri to detect neural responses to cognitive tasks: is there confounding by task related changes in heart rate? This chapter is submitted as: D. van t Ent, A. den Braber, E. Rotgans, E.J.C.
More informationMRI DATA PROCESSING. Compiled by: Nicolas F. Lori and Carlos Ferreira. Introduction
MRI DATA PROCESSING Compiled by: Nicolas F. Lori and Carlos Ferreira Introduction Magnetic Resonance Imaging (MRI) is a clinical exam that is safe to the patient. Nevertheless, it s very important to attend
More informationEffects of Achievement Goals on Challenge Seeking and Feedback Processing: Behavioral and fmri Evidence
on Challenge Seeking and Feedback Processing: Behavioral and fmri Evidence Woogul Lee, Sung-il Kim* Department of Education and bmri (Brain and Motivation Research Institute), Korea University, Seoul,
More informationThe Effects of Musical Training on Structural Brain Development
THE NEUROSCIENCES AND MUSIC III: DISORDERS AND PLASTICITY The Effects of Musical Training on Structural Brain Development A Longitudinal Study Krista L. Hyde, a Jason Lerch, b Andrea Norton, c Marie Forgeard,
More informationWord count: 2,567 words (including front sheet, abstract, main text, references
Integrating gaze direction and expression in preferences for attractive faces Benedict C. Jones 1, Lisa M. DeBruine 2, Anthony C. Little 3, Claire A. Conway 1 & David R. Feinberg 2 1. School of Psychology,
More informationMEDIMAGE A Multimedia Database Management System for Alzheimer s Disease Patients
MEDIMAGE A Multimedia Database Management System for Alzheimer s Disease Patients Peter L. Stanchev 1, Farshad Fotouhi 2 1 Kettering University, Flint, Michigan, 48504 USA pstanche@kettering.edu http://www.kettering.edu/~pstanche
More informationVisual Attention and Emotional Perception
Visual Attention and Emotional Perception Luiz Pessoa 1 and Leslie G. Ungerleider 2 (1) Department of Psychology, Brown University, Providence, RI (2) Laboratory of Brain & Cognition, National Institute
More informationThe Rehearsal Function of Phrases and their Models
Proc. Natl. Acad. Sci. USA Vol. 95, pp. 876 882, February 1998 Colloquium Paper This paper was presented at a colloquium entitled Neuroimaging of Human Brain Function, organized by Michael Posner and Marcus
More informationActivation neuroimaging studies - GABA receptor function - alcohol cues in alcoholism
Activation neuroimaging studies - GABA receptor function A - alcohol cues in alcoholism Professor David Nutt Psychopharmacology Unit, University of Bristol. MRC Clinical Sciences Centre, London. Study
More informationAdapted from Human Anatomy & Physiology by Marieb and Hoehn (9 th ed.)
BRAIN ANATOMY Adapted from Human Anatomy & Physiology by Marieb and Hoehn (9 th ed.) The anatomy of the brain is often discussed in terms of either the embryonic scheme or the medical scheme. The embryonic
More informationrunl I IUI%I/\L Magnetic Resonance Imaging
runl I IUI%I/\L Magnetic Resonance Imaging SECOND EDITION Scott A. HuetteS Brain Imaging and Analysis Center, Duke University Allen W. Song Brain Imaging and Analysis Center, Duke University Gregory McCarthy
More informationBrain areas underlying visual mental imagery and visual perception: an fmri study
Cognitive Brain Research 20 (2004) 226 241 Research report Brain areas underlying visual mental imagery and visual perception: an fmri study Giorgio Ganis a,b,c, *, William L. Thompson a, Stephen M. Kosslyn
More informationFunctional brain mapping of the relaxation response and meditation
AUTONOMIC NERVOUS SYSTEM Functional brain mapping of the relaxation response and meditation Sara W. Lazar, 1,2,CA George Bush, 1,2 Randy L. Gollub, 1,2 Gregory L. Fricchione, 3,5 Gurucharan Khalsa and
More informationVideo-Based Eye Tracking
Video-Based Eye Tracking Our Experience with Advanced Stimuli Design for Eye Tracking Software A. RUFA, a G.L. MARIOTTINI, b D. PRATTICHIZZO, b D. ALESSANDRINI, b A. VICINO, b AND A. FEDERICO a a Department
More informationMini-atlas of the Marmoset Brain
Mini-atlas of the Marmoset Brain http://marmoset-brain.org Aya Senoo Tokyo University of Agriculture and Technology Hironobu Tokuno Tokyo Metropolitan Institute of Medical Science Charles Watson Curtin
More informationBIOLOGY STUDY PACKET THE BRAIN
BIOLOGY STUDY PACKET THE BRAIN SC.912.L.14.26 AA Spring 2012 The intent of this packet is to supplement regular classroom instruction, not to replace it. This also supposes that the students have access
More informationDeveloping Human. Connectome Project. The Developing Human. David Edwards Jo Hajnal Stephen Smith Daniel Rueckert
Developing Human Connectome Project The Developing Human Connectome Project David Edwards Jo Hajnal Stephen Smith Daniel Rueckert Developing Human Connectome Project The Developing Human Connectome Project
More information5 Factors Affecting the Signal-to-Noise Ratio
5 Factors Affecting the Signal-to-Noise Ratio 29 5 Factors Affecting the Signal-to-Noise Ratio In the preceding chapters we have learned how an MR signal is generated and how the collected signal is processed
More informationMen and women differ in amygdala response to visual sexual stimuli
Men and women differ in amygdala response to visual sexual stimuli Stephan Hamann 1,Rebecca A Herman 1,Carla L Nolan 1 & Kim Wallen 1,2 Men are generally more interested in and responsive to visual sexually
More informationAuditory memory and cerebral reorganization in post-linguistically deaf adults
Auditory memory and cerebral reorganization in post-linguistically deaf adults Implications for cochlear implantation outcome D Lazard, HJ Lee, E Truy, AL Giraud Ecole Normale Supérieure, Inserm U960,
More informationLecture One: Brain Basics
Lecture One: Brain Basics Brain Fractured Femur Bone Spinal Cord 1 How does pain get from here to here 2 How does the brain work? Every cell in your body is wired to send a signal to your brain The brain
More informationEmotionally arousing experiences are more memorable than
Sex differences in the neural basis of emotional memories Turhan Canli, John E. Desmond, Zuo Zhao, and John D. E. Gabrieli Departments of Psychology and Radiology, Stanford University, Stanford, CA 94305
More information2 Neurons. 4 The Brain: Cortex
1 Neuroscience 2 Neurons output integration axon cell body, membrane potential Frontal planning control auditory episodes soma motor Temporal Parietal action language objects space vision Occipital inputs
More informationBrain Power. Counseling and Mental Health
Brain Power Counseling and Mental Health TEA COPYRIGHT Copyright Texas Education Agency, 2012. These Materials are copyrighted and trademarked as the property of the Texas Education Agency (TEA) and may
More informationBrain Matters: Brain Anatomy
1 : Brain Anatomy Lesson Overview Students share what they already know about brain structure and function, and then, guided by descriptions of brain regions explore the G2C Online 3-D Brain to learn more
More informationHow are Parts of the Brain Related to Brain Function?
How are Parts of the Brain Related to Brain Function? Scientists have found That the basic anatomical components of brain function are related to brain size and shape. The brain is composed of two hemispheres.
More information3) Cerebral Cortex & Functions of the 4 LOBES. 5) Cranial Nerves (Nerves In the Cranium, i.e., Head)
Lecture 5 (Oct 8 th ): ANATOMY and FUNCTION OF THE NERVOUS SYSTEM Lecture Outline 1) Basic Divisions (CNS vs. PNS, Somatic vs. Autonomic) and Directional Terms 2) The Brain (Hindbrain/ Midbrain/ Forebrain)
More informationProcessing Strategies for Real-Time Neurofeedback Using fmri
Processing Strategies for Real-Time Neurofeedback Using fmri Jeremy Magland 1 Anna Rose Childress 2 1 Department of Radiology 2 Department of Psychiatry University of Pennsylvania School of Medicine MITACS-Fields
More informationSlide 4: Forebrain Structures. Slide 5: 4 Lobes of the Cerebral Cortex. Slide 6: The Cerebral Hemispheres (L & R)
Slide 1: [Film Clip: The Brain #2- Phineas Gage] Integrated Bodily Communications Within Brain (Hemispheres and structures) The remaining Nervous System Endocrine System (Hormonal communication) Our bodies-
More informationChapter 14: The Cutaneous Senses
Chapter 14: The Cutaneous Senses Skin - heaviest organ in the body Cutaneous System Epidermis is the outer layer of the skin, which is made up of dead skin cells Dermis is below the epidermis and contains
More informationFigure 1 Typical BOLD response to a brief stimulus.
Temporal BOLD Characteristics and Non-Linearity Douglas C. Noll, Alberto Vazquez Dept. of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA Introduction While many early neuroimaging studies
More informationUsing Neuroscience to Understand the Role of Direct Mail
Millward Brown: Case Study Using Neuroscience to Understand the Role of Direct Mail Business Challenge Virtual media has experienced explosive growth in recent years, while physical media, such as print
More informationCSE511 Brain & Memory Modeling. Lect04: Brain & Spine Neuroanatomy
CSE511 Brain & Memory Modeling CSE511 Brain & Memory Modeling Lect02: BOSS Discrete Event Simulator Lect04: Brain & Spine Neuroanatomy Appendix of Purves et al., 4e Larry Wittie Computer Science, StonyBrook
More informationHemisperic Dominance of Cortical Activity Evoked by Focal Electrogustatory Stimuli
Chem. Senses 26: 471 482, 2001 Hemisperic Dominance of Cortical Activity Evoked by Focal Electrogustatory Stimuli Michael A. Barry, James C. Gatenby 1, Joel D. Zeiger and John C. Gore 1 Department of BioStructure
More informationFigure 2 Figure 3 Figure 1
The brain is organized into three tiers; a lower tier made up by the brainstem and cerebellum, a middle tier containing the thalamus, basal ganglia and many components of the limbic system and an upper
More informationAn Introduction to ERP Studies of Attention
An Introduction to ERP Studies of Attention Logan Trujillo, Ph.D. Post-Doctoral Fellow University of Texas at Austin Cognitive Science Course, Fall 2008 What is Attention? Everyone knows what attention
More information14 Taste. 14 The Nature of Taste. Vocabulary conventions. Systems of taste classification. Odor Perceived through the orthonasal pathway
Taste Taste Some definitions --- again 4 basic tastes anatomy and physiology coding of taste quality genetic variation in taste experience the pleasures of taste The Nature of Taste Vocabulary conventions
More informationLearning with Your Brain. Teaching With the Brain in Mind
Learning with Your Brain Should what (and how) we teach be associated with what we know about the brain and the nervous system? Jonathan Karp, Ph.D. Dept of Biology 5/20/2004 Teaching With the Brain in
More informationGE Medical Systems Training in Partnership. Module 8: IQ: Acquisition Time
Module 8: IQ: Acquisition Time IQ : Acquisition Time Objectives...Describe types of data acquisition modes....compute acquisition times for 2D and 3D scans. 2D Acquisitions The 2D mode acquires and reconstructs
More informationNervous System Organization. PNS and CNS. Nerves. Peripheral Nervous System. Peripheral Nervous System. Motor Component.
Nervous System Organization PNS and CNS Chapters 8 and 9 Peripheral Nervous System (PNS) connects CNS to sensory receptors, muscles and glands Central Nervous System (CNS) control/integrating center brain
More informationA Data-Driven Mapping of Five ACT-R Modules on the Brain
A Data-Driven Mapping of Five ACT-R Modules on the Brain Jelmer P. Borst (jelmer@cmu.edu) 1,2 Menno Nijboer (m.nijboer@rug.nl) 2 Niels A. Taatgen (n.a.taatgen@rug.nl) 2 John R. Anderson (ja+@cmu.edu) 1
More informationWhy do we have so many brain coordinate systems? Lilla ZölleiZ WhyNHow seminar 12/04/08
Why do we have so many brain coordinate systems? Lilla ZölleiZ WhyNHow seminar 12/04/08 About brain atlases What are they? What do we use them for? Who creates them? Which one shall I use? Brain atlas
More informationTrends in Neuroscience and Education
Trends in Neuroscience and Education ] (]]]]) ]]] ]]] Contents lists available at SciVerse ScienceDirect Trends in Neuroscience and Education journal homepage: www.elsevier.com/locate/tine The effects
More informationChapter Fourteen. Emotion, Reward, Aggression, and Stress
Chapter Fourteen Emotion, Reward, Aggression, and Stress EMOTIONS! Emotions generally include a Physical component, and a Subjective component or quality, and a Valence Emotions a product of Evolution?
More informationRed Brain, Blue Brain: Evaluative Processes Differ in Democrats and Republicans. School of Law, University of San Diego, San Diego, CA 92110 USA 3
Red Brain, Blue Brain: Evaluative Processes Differ in Democrats and Republicans Darren Schreiber 1,2*, Alan N. Simmons 3,4, Christopher T. Dawes 1, Taru Flagan 3,5, James H. Fowler 1, Martin P. Paulus
More informationThe Wondrous World of fmri statistics
Outline The Wondrous World of fmri statistics FMRI data and Statistics course, Leiden, 11-3-2008 The General Linear Model Overview of fmri data analysis steps fmri timeseries Modeling effects of interest
More informationBrief Communication 1275
Brief Communication 17 Recruitment of unique neural systems to support visual memory in normal aging A.R. McIntosh*, A.B. Sekuler, C. Penpeci, M.N. Rajah*, C.L. Grady*, R. Sekuler and P.J. Bennett The
More informationWhat role does the nucleolus have in cell functioning? Glial cells
Nervous System Lab The nervous system of vertebrates can be divided into the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system, which contains nerves,
More informationNeural Correlates of Humor Detection and Appreciation in Children
1784 The Journal of Neuroscience, February 1, 2012 32(5):1784 1790 Behavioral/Systems/Cognitive Neural Correlates of Humor Detection and Appreciation in Children Michelle N. Neely, 1 Elizabeth Walter,
More informationYour Brain on Google: Patterns of Cerebral Activation during Internet Searching
REGULAR RESEARCH ARTICLES Your Brain on Google: Patterns of Cerebral Activation during Internet Searching Gary W. Small, M.D., Teena D. Moody, Ph.D., Prabha Siddarth, Ph.D., Susan Y. Bookheimer, Ph.D.
More informationTHEORY, SIMULATION, AND COMPENSATION OF PHYSIOLOGICAL MOTION ARTIFACTS IN FUNCTIONAL MRI. Douglas C. Noll* and Walter Schneider
THEORY, SIMULATION, AND COMPENSATION OF PHYSIOLOGICAL MOTION ARTIFACTS IN FUNCTIONAL MRI Douglas C. Noll* and Walter Schneider Departments of *Radiology, *Electrical Engineering, and Psychology University
More informationHuman Neuroanatomy. Grades 9-12. Driving Question: How did the evolution of the human brain impact the structure and function it has today?
Human Neuroanatomy Grades 9-12 Driving Question: How did the evolution of the human brain impact the structure and function it has today? Objectives: Students will be able to Describe the basic parts and
More informationTHE BRAIN AND CRANIAL NERVES
THE BRAIN AND CRANIAL NERVES The Brain - made up of a trillion neurons - weighs about 3 lbs - has four principle parts 1. Brain stem - medulla oblongata, pons, midbrain (mesencephalon) 2. Diencephalon
More information2012 Psychology GA 1: Written examination 1
2012 Psychology GA 1: Written examination 1 GENERAL COMMENTS This examination was the final Unit 3 June examination for the VCE Psychology Study Design. From 2013, a single examination covering both Units
More informationNeuroImage 60 (2012) 661 672. Contents lists available at SciVerse ScienceDirect. NeuroImage. journal homepage: www.elsevier.
NeuroImage 60 (2012) 661 672 Contents lists available at SciVerse ScienceDirect NeuroImage journal homepage: www.elsevier.com/locate/ynimg Cortical plasticity for visuospatial processing and object recognition
More informationAberrant Frontal and Temporal Complex Network Structure in Schizophrenia: A Graph Theoretical Analysis
The Journal of Neuroscience, November 24, 2010 30(47):15915 15926 15915 Behavioral/Systems/Cognitive Aberrant Frontal and Temporal Complex Network Structure in Schizophrenia: A Graph Theoretical Analysis
More informationBrain and Cognition. Brain responses differ to faces of mothers and fathers
Brain and Cognition 74 (2010) 47 51 Contents lists available at ScienceDirect Brain and Cognition journal homepage: www.elsevier.com/locate/b&c Brain responses differ to faces of mothers and fathers Marie
More informationHuman Physiology Study Questions-2
Human Physiology Study Questions-2 Action potentials: Handout-8, Chapter 8 1. Explain the positive feedback component of an action potential that is, how the opening of one voltage-gated sodium (or calcium)
More informationStudent Academic Learning Services Page 1 of 8 Nervous System Quiz
Student Academic Learning Services Page 1 of 8 Nervous System Quiz 1. The term central nervous system refers to the: A) autonomic and peripheral nervous systems B) brain, spinal cord, and cranial nerves
More informationSheep Brain Dissection Picture Guide
Sheep Brain Dissection Picture Guide Figure 1: Right Hemisphere of Sheep s Brain Figure 2: Underside of Sheep s Brain Figure 3: Saggital cut of Sheep s Brain to reveal subcortical structures Figure 4:
More informationNervous System sensor input integration motor output sensory organs central nervous system
Nervous System Nervous system performs three overlapping functions of sensor input, integration, and motor output. This process is generally the same even at a very primitive level of nervous system, but
More informationJournal of Serendipitous and Unexpected Results
Journal of Serendipitous and Unexpected Results Neural Correlates of Interspecies Perspective Taking in the Post-Mortem Atlantic Salmon: An Argument For Proper Multiple Comparisons Correction Craig M.
More informationMultifamily Groups in the Treatment of Severe Psychiatric Disorders
Text from pages 7-12 of Multifamily Groups in the Treatment of Severe Psychiatric Disorders By William R. McFarlane (2002) ISBN 1-57230-743-9. Published by The guilford Press, 72 Spring Street, New York,
More informationRecoding, storage, rehearsal and grouping in verbal short-term memory: an fmri study p
Neuropsychologia 38 (2000) 426±440 www.elsevier.com/locate/neuropsychologia Recoding, storage, rehearsal and grouping in verbal short-term memory: an fmri study p R.N.A. Henson a, b, *, N. Burgess b, c,
More informationTinnitus and the Brain
Tinnitus and the Brain Dirk De Ridder & Berthold Langguth Moving animals have developed a brain in order to reduce the inherent uncertainty present in an ever changing environment. The auditory system
More informationModul A: Physiologische Grundlagen des Verhaltens Module A: Physiological Bases of Behavior (8 Credit Points)
Bachelor of Science in Psychology Abbreviated Module Descriptions Modul A: Physiologische Grundlagen des Verhaltens Module A: Physiological Bases of Behavior (8 Credit Department of Experimental Psychology
More informationUnit 2 - Subcortical systems, neurochemistry and brain function
Unit 2 - Subcortical systems, neurochemistry and brain function Subcortical anatomy: Most of the five major subdivisions of the brain are subcortical. I. Telencephalon (cortical - part of forebrain) -
More informationEvidence from humans and other animals has shown that there
Modulation of competing memory systems by distraction Karin Foerde, Barbara J. Knowlton, and Russell A. Poldrack* Department of Psychology and Brain Research Institute, University of California, Los Angeles,
More informationThe Visual Cortex 0 http://www.tutis.ca/neuromd/index.htm 20 February 2013
T he Visual Cortex 0 Chapter contents Contents Chapter 2... 0 T he Visual Cortex... 0 Chapter Contents... 1 Introduction... 2 Optic Chiasm... 2 Where do the eye's ganglion cells project to?... 3 To where
More informationODOR PARAMETERS. Odor Thresholds
2007 ODOR PARAMETERS St. Croix Sensory specializes in quantification of perceived odors of air samples and commercial products and materials. Odors are the sensory perception caused by odorants (chemicals)
More information3. The neuron has many branch-like extensions called that receive input from other neurons. a. glia b. dendrites c. axons d.
Chapter Test 1. A cell that receives information and transmits it to other cells via an electrochemical process is called a(n) a. neuron b. hormone c. glia d. endorphin Answer: A difficulty: 1 factual
More informationA simple and fast technique for on-line fmri data analysis
Magnetic Resonance Imaging 20 (2002) 207 23 Technical note A simple and fast technique for on-line fmri data analysis Stefano Salvador a, Andrea Brovelli b, Renata Longo a, * a Dipartimento di Fisica,
More informationChapter 3 The Anatomy of the Nervous System
Chapter 3 The Anatomy of the Nervous System Systems, Structures, and Cells That Make Up Your Nervous System 1 General Layout of the Nervous System Central Nervous System (CNS) Brain (in the skull) Spinal
More informationChapter 7: The Nervous System
Chapter 7: The Nervous System Objectives Discuss the general organization of the nervous system Describe the structure & function of a nerve Draw and label the pathways involved in a withdraw reflex Define
More informationDissociable Prototype Learning Systems: Evidence from Brain Imaging and Behavior
13194 The Journal of Neuroscience, December 3, 2008 28(49):13194 13201 Behavioral/Systems/Cognitive Dissociable Prototype Learning Systems: Evidence from Brain Imaging and Behavior Dagmar Zeithamova, 1,2
More informationAbnormal Activation in the Visual Cortex after Corneal Refractive Surgery for Myopia
Abnormal Activation in the Visual Cortex after Corneal Refractive Surgery for Myopia Demonstration by Functional Magnetic Resonance Imaging François J. Malecaze, MD, PhD, 1 Kader A. Boulanouar, PhD, 2
More informationBIOL 1108 Vertebrate Anatomy Lab
BIOL 1108 Vertebrate Anatomy Lab This lab explores major organs associated with the circulatory, excretory, and nervous systems of mammals. Circulatory System Vertebrates are among the organisms that have
More informationBoth of Us Disgusted in My Insula: The Common Neural Basis of Seeing and Feeling Disgust
Neuron, Vol. 40, 655 664, October 30, 2003, Copyright 2003 by Cell Press Both of Us Disgusted in My Insula: The Common Neural Basis of Seeing and Feeling Disgust Bruno Wicker, 1 Christian Keysers, 2,3
More informationWhat is the basic component of the brain and spinal cord communication system?
EXPLORING PSYCHOLOGY David Myers The Biology of Mind Chapter 2 Neural Communication Neurons How Neurons Communicate How Neurotransmitters Influence Us The Nervous System The Peripheral Nervous System The
More informationSITE IMAGING MANUAL ACRIN 6698
SITE IMAGING MANUAL ACRIN 6698 Diffusion Weighted MR Imaging Biomarkers for Assessment of Breast Cancer Response to Neoadjuvant Treatment: A sub-study of the I-SPY 2 TRIAL Version: 1.0 Date: May 28, 2012
More informationDiffusione e perfusione in risonanza magnetica. E. Pagani, M. Filippi
Diffusione e perfusione in risonanza magnetica E. Pagani, M. Filippi DW-MRI DIFFUSION-WEIGHTED MRI Principles Diffusion results from a microspic random motion known as Brownian motion THE RANDOM WALK How
More informationIndependence of Visual Awareness from the Scope of Attention: an Electrophysiological Study
Cerebral Cortex March 2006;16:415-424 doi:10.1093/cercor/bhi121 Advance Access publication June 15, 2005 Independence of Visual Awareness from the Scope of Attention: an Electrophysiological Study Mika
More information2. MATERIALS AND METHODS
Difficulties of T1 brain MRI segmentation techniques M S. Atkins *a, K. Siu a, B. Law a, J. Orchard a, W. Rosenbaum a a School of Computing Science, Simon Fraser University ABSTRACT This paper looks at
More informationBrain Development. Genetic make-up... is not the major determiner
Brain Development Presented by: Linda Alsop SKI-HI Institute Utah State University Genetic make-up... is not the major determiner Early experiences are so powerful that they can completely change the way
More information